Drake does the ALS Ice Bucket Challenge during his tour.

We're seeing all kinds of celebrities do the ALS Ice Bucket Challenge in an effort to promote awareness for the disease, amyotrophic lateral sclerosis, also known as Lou Gehrig’s disease. Drake was challenged by Tyga, Brandon Jennings and Colin Kaepernick, and decided to do it at his Pittsburgh "Drake Vs. Lil Wayne" tour stop. If you weren't there in person, you can re-live the moment when Weezy dropped a bucket of cold ice water on Drake's head through the Instagram video above.